N-Acetylneuraminic Acid CAS 131-48-6 | High Purity Fermentation Sialic Acid Raw Material
N-Acetylneuraminic Acid (Sialic Acid) CAS 131-48-6 | Fermentation Raw Material Selection, Application & Purchasing Guide

Introduction
、With the rapid growth of global infant nutrition, oral anti-aging, and functional skincare markets, N-Acetylneuraminic Acid (Sialic Acid, CAS 131-48-6) has become a high-demand functional ingredient for international brands.
However, the market is troubled by falsified purity, unstable batches, adulterated processes and non-compliant products, which easily leads to formula failure, unstable finished products and supply chain risks.
This article covers process comparison, mainstream applications, compliance standards, purchasing pitfalls and supplier selection standards, providing reliable reference for global buyers, formulators and R&D teams.
1. What is N-Acetylneuraminic Acid
N-Acetylneuraminic Acid is the most biologically active and widely used monomer in the sialic acid family. It naturally exists in breast milk and bird nest, with excellent functions in brain nutrition, immune regulation, skin repair and anti-oxidation. It is a popular dual-purpose ingredient for food and cosmetic industries.
Basic Specifications
– CAS No: 131-48-6
– Appearance: White crystalline powder
– Solubility: Highly water-soluble
– Stability: High temperature resistant, suitable for multiple production processes
– Main production method: Microbial fermentation (industrial mainstream standard)
2. Natural Extraction vs Fermentation Sialic Acid
Many overseas purchasing failures are caused by incorrect production processes.
2.1 Natural Bird Nest Extraction
– Limited raw materials and low production capacity
– High cost, not suitable for mass production
– Unstable content and high impurity rate
– Higher risk of heavy metals and microorganisms
– Not recommended for long-term brand procurement
2.2 Microbial Fermentation
✅ Exactly the same molecular structure and biological activity as natural sialic acid
✅ Purity up to 98%+, stable and controllable indicators
✅ Non-animal source, higher compliance for food and cosmetic fields
✅ Stable annual output without seasonal limitation
✅ Minimum batch difference, ensuring stable finished product quality
Fermentation-derived N-Acetylneuraminic Acid is the primary choice for European, American and Southeast Asian brands.
3. Global Main Applications of N-Acetylneuraminic Acid
3.1 Infant Nutrition Food
As a breast milk homologous ingredient, sialic acid supports nerve development, improves memory and enhances immune protection. It is widely added in infant formula milk powder, nutritional powder and complementary food formulas.
3.2 Functional Dietary Supplements
Widely used in brain health, anti-aging and immune-support products, including tablets, capsules, oral liquids and probiotic formulas. It covers children, adults and elderly health markets with high repurchase demand worldwide.
3.3 High-End Cosmetic Raw Material
N-Acetylneuraminic Acid inhibits melanin production, eliminates free radicals, resists glycation and repairs skin barriers. It is a core functional material for anti-aging, brightening and post-skin-repair skincare products.
3.4 Biomedical & Scientific Research
Commonly used in virology research, cell culture, neurobiology experiments and pharmaceutical intermediate development, with stable purchasing demand from global research institutions and pharmaceutical companies.
4. Four Common Purchasing Pitfalls for Overseas Buyers
4.1 Falsified Purity
Many low-purity adulterated products look similar in appearance but have insufficient activity, resulting in ineffective final products.
4.2 Unstable Batch Quality
Unprofessional factories show inconsistent color, solubility and content between batches, causing batch failure of branded finished goods.
4.3 Incomplete Export Documents
Products without complete COA, MSDS and HPLC reports cannot pass customs clearance or brand registration audits.
4.4 Untransparent Production Process
Some mixed-process materials contain animal-source risks and fail to meet European and American food entry standards.
5. Professional Selection Standards for Global Buyers
5.1 Adopt Fermentation Process Only
Non-animal source, high compliance and suitable for long-term export mass production.
5.2 Consistent Batch Data
Stable solubility, color, purity and loss on drying with minimum batch deviation.
5.3 Complete Document Support
Provide COA, MSDS and HPLC reports to support customs clearance, laboratory testing and brand filing.
5.4 Stable Stock Supply
Avoid out-of-stock risks, seasonal price fluctuations and delayed delivery.
6. Our Supply Advantages of N-Acetylneuraminic Acid
We specialize in supplying high-purity fermentation N-Acetylneuraminic Acid CAS 131-48-6 for global long-term bulk procurement:
✅ Purity ≥98%, uniform white crystalline powder
✅ Stable batch quality, no color difference, no caking, excellent solubility
✅ Full set of export documents for global customs clearance
✅ Food grade & Research grade available
✅ Support sample testing, small trial orders and bulk long-term cooperation
✅ Stable stock, fast delivery and stable price
7. FAQ | Frequently Asked Questions
Q1: Is fermented sialic acid the same as natural bird nest sialic acid?
A: The molecular structure and biological activity are identical. Fermentation grade is purer, more stable and more suitable for industrial production.
Q2: Is the raw material heat resistant for spray drying?
A: It has excellent thermal stability and adapts to spray drying, tableting and liquid filling processes.
Q3: Can I get free samples for testing?
A: Yes, we support sample application for formula testing, quality comparison and stability verification.
Q4: Are export documents available?
A: COA, MSDS and HPLC chromatogram reports are provided for every batch to support global audits and customs clearance.
Conclusion
In the mixed sialic acid raw material market, compliant fermentation process, stable batch quality and transparent data have become the core purchasing standards for global brands.
High-purity fermented N-Acetylneuraminic Acid effectively stabilizes finished product performance and reduces supply chain risks.
If you are looking for reliable N-Acetylneuraminic Acid raw materials, welcome to contact us for the latest price, samples and complete technical documents.
Shaanxi Astro Biology Co.,Ltd